Driving attachment for field-coils.



F. J. COUPAL.

DRIVING ATTACHMENT FOB FIELD COILS,

APPLICATION FILED JUNE 3.191s.

Patented Feb. 6, 1917.

3 SHEETS-SHEET I.

F. J. COUPAL.

DRIVING ATTACHMENT FOR FIELD COILS.

APPLICATION FILED JUNE 3.1916.

Patnted Feb. 6, 1917.

3 SHEETS-SHEET 2 Zjwum m z ms mmms PEYERS co. rnom unwq wunmmuu. n. c.

F. J. COUPAL.

DRIVING ATTACHMENT FOR FIELD COILS.

APPLICATION FILED IUNE3, I916- Patented Feb. 6, 1917.

3 SHEETS-SHEET 3 W0 was ,1,

Fran W Li;

UIQTTED FRANK .r. couranfor BUFFALO, new "roan.

DRIVING ATTACHMEN T FOR FIELD-COILS.

naiaoor.

Specification of Letters IEatent.

Patented Feb. 6, 1917..

Application filed .Tune 3, 1916. Serial No. 101,510.

To all whom it may concern:

Be it known that I, FRANK J. CoUrAL, a citizen of the United States, residing at Bulfalo, in the county of Erie and State of New York, have invented new and useful Improvements in Driving Attachments for F ield-Coils, of which the following is a specification.

y invention relates to certain new and useful improvements in driving attachments for field coils and has particular reference to an enacting attachment for the revolving field coils for increasing the efiiciency and operation of the machine. 9

Primarily, the invention resides in an im proved driving connection between the gen erator and an enacting attachment for the revolving field coils by which said attachment is reciprocated.

Further, the invention resides in the features of construction and arrangements and combinations of parts hereinafter described and claimed, reference being had to the accompanying drawings wherein Figure 1 is a vertical section of the preferred embodiment of the invention, parts being left in elevation;

Fig. 2 is a fragmentary top plan of the upper bearing provided for the countershaft of the attachment;

Fig. 3 is a fragmentary top plan view of the invention as depicted in Fig. 1;

Fig. 4 is a top elevation of the lower bearing for said counter shaft;

Fig. 5 is a rear elevation of the shaft supporting frame; and

Fig. 6 is a broken end elevation of the machine with the shaft supporting frame and associated parts omitted.

The invention is especially adapted for that type of electric generators driven by the powerderived from Niagara Falls although it is manifestly capable of other uses and adaptations. The generator is provided with a gear 16 which is connected with the reciprocating gear 28 by the present invention.

Slidably mounted on the base 1 is a 2G- shaped frame 2 provided with opposed vertical bearings 10 and 11, in which the vertical shaft 14: has its ends journaled. This shaft has fixed thereon a gear 26, which meshes with the generator gear 16, a sprocket gear 40 and an intermediate fly wheel 24, the weight of which latter will depend upon the armature of the generator.

The upper bearing 10 is provided in the upper end portion of frame 2 which is formed with a sectional chamber, the sec tions of which are joined by bolts 12 and in which the circular series'of roller bearings 22 is arranged, said rollers being journaled at their upper and lower ends in hardened rings 47 which are braced by connecting rods 46. This roller bearing chamber is closed by a cover plate 413 secured in place by bolts 8, and the dowel pins 11 interconnect the upper ring plate 47 and cover plate 1-3 to prevent the former from turning in the chamber. The upper end of shaft 1 1 is provided with a hardened bushing 49 and a guide cap 5 secured in position by screw 15.

' The lower bearing 11 is formed in a raised table which is chambered to receive the two hardened points 18 and 39 interposed a bearing plate 21. The upper portion of the chamber is counterbored to provide a seat for the hardened plate 27 which forms the lower race way for ball bearings 36 and which is retained therein by screw 58. A disk 23 is secured to the adjacent face of sprocket gear 1:0 by screws 29 to provide a flange for said gear, while fasteners 38 fix an underlying plate 30 to said disk 23, the former constituting the upper race way forball bearings 36.

A shaft 8 is journaled horizontally in a standard rising from base 1 and is secured against dislodgment by clamp 9 and screws 51. The forward end portion of the shaft is screw-threaded and engaged in an internally threaded sleeve or bushing 5 which is secured in the shaft frame 2 by a strap 7 and screw 4:. Upon rotating the hand wheel 17, fixed to the rear end of shaft 3 by screw 59, the frame 2 will be slid on the base 1 whereby the gears 16 and 26 may be brought into or removed from meshing relation.

An endless silent chain 19 passes over sprocket gears 40 and 28, and to retain the chain operative or taut during adjustment of the frame 2 the former is supported intermediatesaid gears by a pair of yieldably mounted idlers 57.

A pair of vertically slotted standards 48 rise from the rear end portion of base 1, the upper ends of the slots being closed by plates secured to said standards by bolts 45. Arranged for vertical sliding in the stand ards 48 is a supporting block or sleeve 35 which spans the space intermediate the standards and is provided with a horizontal bore through which shaft 4 1 extends. This between which is a interlocking the shaft with the caps to hold in the following manner.

the latter fixed. Coiled springs 25 are arranged between the standards 48 to yieldably urge the support 85 upwardly and thereby maintain the silent or noiseless chain 19 taut in all adjustments of frame 2.

The disks 23 and 4:2 and the flanges 20 on gear 28 serve in guiding the chain in its movement and in preventing dislodgment thereof.

Frame 2 has a sliding dovetail connection with the base 1 and is removable therefrom One guiding flange 60 of the dovetail connection is slidably bolted to the base by locking screws 54, said flange 60 being slidable transversely of the base by adjusting screws 53. These screws are threaded through an upstanding wall on the base and are locked in a desired adjustment by nuts 55.

It is obvious that by proper adjustment, the flange section 60 may be positioned to permit of ready removal or adjustment of frame 2.

What I claim is:

1. In a device of the character set forth, a base, a (i-shaped frame thereon having a raised table formed with a shaft bearing and an overhanging arm formed with an upwardly opening recess having a shaft receiving opening in its bottom, a vertical shaft journaled in the table bearing and extending upwardly through the opening and into the recess of the arm, roller bearings arranged in the arm recess about the shaft, and means arranged between the table and overhanging arm for rotating the shaft.

2. In an attachment of the class described, a drive gear, a normally meshing driven gear, a slidably supporting frame for the driven gear, a sprocket gear supported on the frame and connected with the driven gear, asecond sprocket gear, a chain con necting the sprocket gears, and a yieldable idler bearing against the chain to hold the same taut during adjustment of the frame.

3. In an attachment of the class described, a base having a standardthereon, a G-shaped frame slidable thereon and having vertical bearings, a shaft journaled in the frame bearings, a drive gear toward and from which the frame is adjustable, a driven gear on the shaft adapted to mesh with the drive a Ca-shaped thereon andhavmg vertical 7 gear, a flywheel on the shaft, a sprocket gear fixed on the latter, a chain passing over the sprocket gear, a second sprocket gear over which the chain passes and a shaft ournaled in the standard and having threaded connection with the frame for adjusting the latter, V

5. In a device ofthe character set forth, a base having a pair of vertically slotted standards, a slidable support interposed between the standards with its ends sliding in the slots thereof, a shaft extending through the support, idlers on the projecting ends of the shaft, means yieldably urging the shaft support upwardly in the standard slots, an adjustable gear on the base, a drive chain passing over and a second gear over which the. chain passes.

6. In a device of the character set forth, a base having a pair of vertically slotted standards, a slidable support interposed between the standards with its ends sliding in the slots thereof, a shaft extending through the support, idlers on the projecting ends of the shaft, means yieldably urging the shaft support upwardly in the standard slots, a

third standard on the base, an adjustable frame slidable on the base and having a part opposing the third standard, said part having an internally threaded opening, a screw shaft journaled in the third standard and threadedly engaged in the opening of the frame, a shaft journaled in the frame, a sprocket gear fixed on 'the shaft, a chain passing over the sprocket and idlers, and a second gear over which the chain passes.

'TJIn a mechanism of the character described, a' drive gear, a base, a (Ir-shaped frame slidable on the base toward and from the gear, a shaft journaled in the frame, a driven gear fixed on the shaft for" meshing with the drive gear, a standard on the base opposing the back of the frame, and an adjusting screw on the standard engaging through the back of the frame to adjust it on the base and move the gears into and out of meshing relation. V

'8. In a mechanism of the character described, a drive gear, a base, a frame adjustable on the base toward and from the gear, said frame having a foot sliding in a groove provided in the base, one wall of the base groove being adjustable, a shaft journaled in the frame, a driven gear fixed on the shaft for meshing with the drive gear, a standard on the base opposing the frame, and an adjusting screw on the standard for engaging the frame to adjust it on the base and move the gears into and out of meshing relation.

9. In a mechanism of the class described, a generator, an attachment driven thereby, a detachable drive connection between the generator and attachment including an endless chain, means for detaching the connection from the generator, and means for maintaining the chain taut When the connection is detached from the generator.

10. In a device of the character set forth, a base, a G-shaped frame thereon having a raised table formed with a shaft bearing and an overhanging arm formed With a shaft bearing, a vertical shaft journaled in said bearings of the frame, a sprocket gear fixed on the shaft and rotatable on the table, a fly Wheel on the shaft, and means for rotating the shaft to drive the sprocket gear.

In testimony whereof I have affixed my signature hereto, in presence of two Witnesses, at Bridgeport, Conn, May 31, 1916. FRANK J. COUPAL. Witnesses:

F. WV. SMITH, J r., M. T. LONGDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissionerof Patents, Washington, D. 0. 

